JPH119076A - Apparatus for threshed waste culm of farm working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a changeover and holding part for changing over a waste culm conveyor from a conveying position to a nonconveying position of threshed waste culms and holding the waste culm conveyor and a changeover lever thereof at positions for facilitating the operations thereof in the waste culm conveyor for conveying the threshed waste culms to a waste culm treating device. SOLUTION: This apparatus for threshed waste culms of a farm working machine is obtained by installing a changeover and holding part 8 for changing over the presence or absence of waste culm conveyance and holding the waste culm conveyor 3 at a position near both the starting end for taking over the waste culms of a waste culm conveyor 3 and a feed chain 7 within a possible range, arranging a changeover lever 9 for performing changeover actions on the changeover and holding part 8 in the direction perpendicular to a threshing cylinder 10 and composing the changeover lever 9 so as to face the tip face 9a thereof to the side of the feed chain 7 in the farm working machine obtained by enabling the changeover of the waste culm conveyor 3 form taking over the threshed waste culms discharged from a thresher 1 and conveying the taken over threshed waste culms to a waste culm treating device 2 at the rear from a conveying position A to a nonconveying position B due to the presence or absence of the waste culm conveyance by the vertical movement of the front side of a chain frame around which a waste culm chain is wound with the rear side thereof as a rotation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing and culling device for an agricultural work vehicle, and in a culm conveying device for conveying a threshed culm to a culm processing device, the culm is switched between a transfer position and a non-conveying position. And can be used for combine harvesters and self-propelled threshing machines as agricultural work vehicles.

[0002]

2. Description of the Related Art A culm transport device for transporting threshed culm to a culm processing device such as a cutter device or a knotter device is provided. In the case of cleaning or maintenance when the culling occurs, the rear side is used as a rotation support shaft and the front side is moved upward to open the transport passage. The switching holding unit that switches and holds the transfer position between the transfer position and the non-transport position where transfer of the culm is disabled, along the culm chain, near the rear end from the start end thereof, close to the vertical pivot shaft. And at a position away from the feed chain. Therefore, a switching lever for causing the switching holding portion to perform a switching operation is generally provided so as to protrude upward.

However, in the case where the switching holding portion and the switching lever are arranged at the starting end of the drainage chain or at the rear side away from the feed chain, the transport passage of the drainage chain is opened. Sometimes, the switching holding portion is located at a position near the rear end from the starting end of the culm chain, close to the vertical pivot shaft and disadvantageous in the upward operating force, and the switching lever faces upward. Therefore, the operation of opening the transport passage is difficult to perform easily because the lifting operation force of the culm chain is required because the operation is difficult.

Accordingly, the present invention provides an arrangement in which the switching holding unit and its switching lever are arranged at a position that facilitates the upward movement of the discharging culm chain when the discharging culm conveying device is switched between the conveying position of the discharging culm and the non-conveying position. I do.

[0005]

According to the present invention, a threshing apparatus 1 is provided.
Transfer device 3 that takes over the threshed culms discharged from the stalk and conveys it to the rear culm processing device 2 on the rear side, and the rear side of the chain frame 5 around which the culm chains 4 are wound is used as a rotation support shaft 6. In the agricultural work vehicle that can be switched between the transport position A and the non-transport position B depending on the presence / absence of the culm conveyance by the vertical movement of the part side, a possible range feed near the starting end which takes over the culm of the culm conveyance device 3 With culm transportation at a position close to the chain 7
There is provided a switching holding portion 8 for switching and holding nothing, and a switching lever 9 for switching the switching holding portion 8 is disposed in a direction orthogonal to the handling cylinder 10 and a front end surface 9a faces the feed chain 7 side. And a configuration of a threshing culm device.

[0006]

With the above arrangement, the chain frame 5 around which the culm chain 4 in the culm transport device 3 is wound is moved downward by operating the switching lever 9 so that the rear side is the rotation support shaft 6 and the front side is lowered. When the culm chain 4 is held at the transfer position A, the threshed culm taken over from the feed chain 7 is conveyed to the culm processing device 2. Next, when the chain frame 5 is moved upward by the operation of the switching lever 9 to hold the culm chain 4 at the non-conveying position B, the conveyance passage of the culm chain 4 is opened, and the culm processing of the culm is performed. The transfer to the device 2 is disabled. In this manner, the switching holding unit 8 for switching the culm conveying device 3 between the transfer position A and the non-conveying position B is close to the feed chain 7 near the start end of the culm chain 4 that takes over the culm from the feed chain 7. And a switching lever 9 for switching the switching holding portion 8 is provided on the handle cylinder 1.
Since the tip end surface 9a is arranged to face the feed chain 7 in a direction orthogonal to 0, the switching holding portion 8 is far away from the rotation support shaft 6 and is located at a position which is advantageous in the upward moving operation force. Since the switching lever 9 is also arranged in a direction in which it is easy to operate, when the culm chain 4 is switched to the non-transport position B, the culm chain 4 can be easily moved upward with a small operation force. it can.

[0007]

As described above, the switching holding unit 8 and the switching lever 9 for switching the threshed culms to the conveyance position A in a state where the threshed culms are conveyed to the culm processing apparatus 2 and the non-conveyance position B in a non-conveyable state. In the non-transporting position B, the rear side of the culm chain 4 is pivoted on the rear side at the non-conveying position B, and the front side is moved upward. Provided at a position near the feed chain 7 near the starting end of the culm chain 4 and the switching lever 9 is disposed with its tip end surface 9a facing the feed chain 7 in a direction perpendicular to the handling cylinder 10. As a result, as in the related art, the switching holding portion 8 is disposed at a position near the rotation support shaft 6 closer to the rear side from the start end of the culm chain 4 and is disadvantageous in the upward moving operation force, and the switching lever 9 is also facing upward and it is difficult to operate it The switching holding unit 8 is located at a position far away from the pivot 6 near the starting end of the culm chain 4 and is advantageous in the upward moving operation force without requiring an additional upward moving operation force. In addition, since the switching lever 9 is also in the easy-to-operate direction, when the culm chain 4 is switched to the non-transport position B, the culm chain 4 can be easily moved upward with a small operation force, and workability can be improved. Is improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings for a combine. FIG. 7 shows the entire configuration of the combine, in which a traveling device 12 provided with a pair of left and right traveling crawlers 11a traveling on the soil surface is provided below the chassis 11, and the feed chain 7 is provided on the chassis 11. A grain tank 13 for threshing the grain stem supplied while being pinched, and for selectively collecting and collecting the threshed grains, and a discharge horizontal cylinder 13a for discharging the grains in the grain tank 13 to the outside of the machine. Is mounted.

In the front side of the threshing apparatus 1, a weeding body 14 for weeding the cultivated cereal culm and a raising part 1 for causing the weeded cereal culm.
5, a reaping device 18 provided with a cutting blade portion 16 for cutting the raised grain culm, and a grain culm conveying portion 17 for conveying the cut culm to the rear side and transferring it to the feed chain 7;
It is constructed by being mounted on the front end of the chassis 10 so that it can be raised and lowered with respect to the soil surface.

An operating device 19 for controlling the operation of the combine and an operating seat 2 for this operation are provided on one side of the reaper 18.
0 and the threshing device 1 and the traveling device 1
2. The body 21 is constituted by the reaper 18, the operating device 19 and the like. As shown in FIG. 3, the threshing apparatus 1 includes a threshing chamber 22 and a processing chamber 23 on an upper side, and a sorting chamber 24 on a lower side, and a handling cylinder 10 for threshing grain culms in the threshing chamber 22. A stirrer is installed inside the processing chamber 23 from the front part on the inlet side to the rear part on the outlet side, and the processing chamber 23 is fed with the reduced second product to the front half thereof while leaking to the sorting chamber 24 while being fed forward. An agitation processing cylinder 25 in which a drum and a processing drum for reprocessing threshing material are connected in the latter half portion is mounted on a shaft parallel to the handling drum 10.

The feed chain 7 for nipping and transporting the grain stalks along the grain stalk transport path, a handling net 26 surrounding the lower half of the handling cylinder 10, and threshing and dusting that does not leak from the handling net 26. A threshing dust discharge port 27 for discharging materials is provided at an end of the handling net 26 on the outlet side. The sorting room 24 is provided with a vertically swinging sorting shelf 28 for sorting while threshing and transferring threshing material that has been threshed and leaked from the handling net 26 along the axial direction of the handling cylinder 10 at the entrance thereof. With the side part as a good side, it is erected toward the exit side, and at the lower side on the upper side of the oscillating sorting shelf 28, a Karamin 29 which generates a sorting wind by the rotation of the blade is arranged. A first spiral 30 that accommodates the first grain selected by 29 and collects the laterally fed grains and a second spiral 31 that accommodates the second grain and collects the laterally fed grains are provided below the swing sorting shelf 28. Place and configure.

A dust discharge fan 3 for discharging threshing dust to the outside of the machine by a sirocco fan or the like above the lower side of the swing sorting shelf 28.
2 is provided by forming a fan exhaust port 32c by the upper cover 32a and the lower guide 32b.
c is configured to be opened at an appropriate position of the culm processing device 2 that cuts the culm and discharges the culm by a large number of opposed disk blades 2a and 2b mounted on the outlet side wall 33 of the threshing device 1. .

A tubular culm main frame 35 extends from one side of the right side wall 34 of the threshing apparatus 1 toward the rear side, and the culm processing apparatus 2 is supported at the rear end of the main frame 35. Tube-shaped rear culm frame 36 extended in the left-right direction
At an appropriate position on the rear side of the main frame 35, the middle part of the middle frame 37 of the culm supporting the vertical cylinder 13b of the grain tank 13 at one end is orthogonally connected, and the other end is connected. The portion is formed obliquely so as to be connected to the exit side plate 38 of the threshing room 22 at a position near the start end of the culm transport device 3. (Refer to FIG. 4) The culm transporting device 3 includes an outlet side plate 3
The culm chain 4 which takes over the threshed culm from the feed chain 7 and conveys it to the rear culm processing device 2 on the rear side is wound around the chain frame 5 and held. The feed chain 7 is brought close to the inner position near the end portion, and the end portion is connected to the culm processing device 2.
It is configured so that it is inclined toward the right side of.

The culm chain 4 and its chain frame 5
Is a stem-side chain frame 5a that wraps around a stem-side culm chain 4a that pinches and conveys the stem closer to the stem side with a chain, and a tip that engages and conveys the tip-side leaning with a standing lug. The spike-side chain frame 4b around which the side culm chain 4b is wound and held is arranged substantially in parallel at appropriate intervals in plan view.

The front and rear connecting portions of the two chain frames 5a and 5b are properly positioned on the front connecting plate 39a and the rear connecting plate 39b.
The pivot arm 40 extends rearward from the rear connection plate 39b, and the pivot arm 40 is obliquely connected to the vicinity of a connection portion between the culm main frame 35 and the post-culm frame 36. It is configured to be rotatably supported on the rotation support shaft 6.

As shown in FIG. 5, the pulley output pulley 41 which is fixed to the outside of the outlet side plate 38 of the handle cylinder shaft 10a on which the handle cylinder 10 is mounted, is adjusted from the pulley output pulley 41 which is supported on the handle cylinder cover 42. Power is transmitted to the culm input pulley 46 by tensioning the transmission belt 45 via the tension pulley 44, and the motive power is transmitted to the culm input pulley 46 when the conveyance state of the culm conveyance device 3 is switched. When the handling drum cover 42 is opened at the time of maintenance or the like, the adjustment pulley 43 provided on the cover 42 moves in a direction in which the transmission belt 45 is relaxed, and transmission of power is disabled.

The culm input pulley 46 and a culm drive sprocket 47 for driving the culm side culm chain 4a are communicatively connected via a culm gear case 48 having a pair of bevel gears therein. The culm gear case 48 is attached to a case attachment plate 49 fixed to the front end of the stock side chain frame 5a. The spike-side culm chain 4b is located near the rear connecting plate 39b of the stock-side chain frame 5a.
A spike driving sprocket 50 for driving the stalk is arranged so as to be drivable by the root side culm chain 4a.
A chain support plate 51 for adjusting the tension of the stem-side discharge culm chain 4a and preventing winding of the straw stem is arranged at the rear end of the stem-side chain frame 5a in an adjustable manner. The root side culm chain 4a
The culm holding rod 52 that slides on the culm conveyance passage of the culm and nips and conveys the culm is arranged so as to be movable up and down with respect to the amount of conveyance of the culm.

In the gap C between the culm input pulley 46 and the exit side plate 38 of the threshing room 22, the transfer position A for transferring the culm by bringing the culm conveying device 3 into sliding contact with the culm pinching rod 52; A switching holding unit 8 is arranged to move the front side of the culm conveying device 3 upward by the rear-side rotating support shaft 6 to switch and hold the non-conveying position B where the culm pinching rod 52 is released from sliding contact. Constitute. The switching holding portion 8 is parallel to the front and rear positions at an appropriate interval for supporting a switching shaft 53a fixedly provided to protrude rearward from an upper position of the switching plate 53 at one end of the case mounting plate 49 on the side of the culm input pulley 46. An upright switching support plate 54 is fixed to the switching shaft 53a, and a reverse L is positioned near the upper position of the pulley 46 along the outlet side plate 38 in a direction orthogonal to the handling cylinder 10 at a position lateral to the switching shaft 53a.
A switching lever 9 having a character-like shape and an appropriate length is fixedly provided, and a distal end surface 9a of the lever 9 is arranged and arranged toward the feed chain 7 side.

The switching plate 53 is moved to the lower and upper two-stage positions by inserting the culm conveying device 3 into a switching holding pin 55 fixed to the vicinity of the other end of the frame 37 during culling. And the non-transport position B are provided with pin locking grooves 53b and 53c for switching and holding, and the operation of the switching lever 9 causes the pin locking grooves 53b and 53c of the switching plate 53 to rotate and detach from the switching holding pin 55, respectively. A resiliently biased torsion spring 56 is provided around the switching shaft 53a so that the switching plate 53 can be reinserted and locked in the desired pin locking grooves 53b and 53c by the vertical movement of the switching plate 53.

Switching shaft 53 supported on the switching support plate 54
a regulating rod 57 projecting rearward to regulate the lower limit position when the excrement conveying device 3 is switched to the transporting position A, is fixedly connected to the culm transporting device 3, and the regulating rod 57 is locked. The receiving metal 58 extends from the middle frame 37 and is fixedly provided.
When the culm conveyance device 3 is switched to the conveyance position A at an appropriate position of the handle cylinder cover 42 and held, the holding rod 59 for holding the lifting of the conveyance position A more firmly is fixed by the mounting metal 59a. When the cover 42 is closed, a holding member 60 for receiving engagement by the holding rod 59 is fixed to the upper surface of the case mounting plate 49.

The rising portion 4 is formed by bending the other end of the case mounting plate 49 upward along the inner edge of the culm chain 4a.
9a, and an L-shaped lifting lever 61 that is operated together with the switching lever 9 when the excretion transport device 3 is switched between the transport position A and the non-transport position B.
Is fixed at an easily operable angle at a position facing the switching lever 9 with the culm gear case 48 interposed therebetween.

The reaper 1 is cut off by the reaper 18
The husk supplied from 7 to the threshing apparatus 1 is subjected to threshing by pinching and transporting the feed chain 7, and the threshed culm discharged from the threshing apparatus 1 upon completion of the threshing process is transferred to the culm transport apparatus 3. It is carried over to the rear culm processing device 2 at the rear. When the threshed culm is conveyed, the pin locking groove 53b at the upper position of the switching plate 53 of the switching holding unit 8 is automatically moved by the upward movement of the switching lever 9 by the elastic force of the torsion spring 56. And the transfer position A
The culm conveying device 3 is conveyed to the culm processing device 2 by securing the culm conveying passage of the culm conveying device 3. Next, when the transport of the threshed culm is disabled, the pin locking groove 53c at the lower position of the switching plate 53 is resiliently pushed by the torsion spring 56 by the upward operation of the switching lever 9 and the lifting lever 61. The force is automatically inserted into the switching holding pin 55 and locked to switch to the non-conveying position B, and the culm conveying passage is opened to disable conveyance to the culm processing device 2.

As described above, when the switching device 9 is operated to switch and hold the culm transporting device 3 between the transport position A and the non-transport position B, the switching lever 9 is arranged along the outlet side plate 38 at its front end face. By arranging 9a toward the feed chain side, the culm transporting device 3 can be easily lifted in a direction in which it can be easily lifted, thereby improving workability. Further, by simultaneously lifting the culm transport device 3 by the switching lever 9 and the lifting lever 61, the chain frame 5 does not bend due to torsion, the lifting becomes easier, and the workability is improved. . For this reason, the chain frame 5
The weight and cost can be reduced without the need for special reinforcement.

Further, as in the prior art, when the culm conveying device 3 is switched to the non-conveying position B, when a damper such as a gas spring is used to prevent the culm conveying device 3 from lowering, when the switching to the conveying position A is performed, It is necessary to depress the reaction force excessively, which causes a problem in switching and holding, and the use of a damper has increased the cost. However, since this problem can be reliably and automatically switched and maintained only by operating the switching lever 9,
The workability is improved, and the trouble of switching and holding is reduced. In addition, since the switching can be performed by the single switching lever 9, the cost can be reduced.

The switching holding unit 8 of the culm conveying device 3 is
The exit side plate 38 and the culm input pulley 46 near the starting end of the culm-side culm chain 4a taking over the culm from the feed chain 7.
Is arranged in the gap C between the upper and lower ends, the lifting of the leading end of the culm chain 4 which is the most important at the time of work is prevented, the takeover is ensured, and the position is far away from the pivot 6. When the transfer passage of the culm transfer device 3 is opened, the lifting load is reduced, and workability is improved.

The main frame 35, the middle frame 37 and the post-culm frame 36 are connected to each other so that one end of the middle frame 37 allows the vertical cylinder 13b of the grain tank 13 to be connected. Since the main frame 35 and the rear frame 36 are connected to each other by the pivot 6, the frame strength is improved as a whole. By supporting the culm transport device 3 by 40, it is possible to prevent rattling and wobble and improve the mounting strength.

Further, as in the prior art, when the upper part of the vertical cylinder 13b is supported by the cylinder receiving portion 62 made of an iron plate, the vertical cylinder 13b may be damaged when turning the vertical cylinder 13b. In addition, dust adheres to the cylinder receiving portion 62, so that a turning load becomes excessive and a fuse of a turning motor or the like is blown. However, the cylinder receiving portion 62 in which this trouble occurs
As shown in FIG. 6, by supporting a plurality of rollers 62a, the turning load is reduced, and there is no need to lubricate the rollers 62a and there is no fear that dust adheres.

By making the roller 62a mounting portion of the tube receiving portion 62 a long hole, even if a phase difference occurs between the vertical dusting cylinder 13b and the tube receiving portion 62, the long hole is adjusted to allow the roller 62a to rotate. It can be always in contact with the vertical cylinder 13b.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a culm transport device.

FIG. 2 is a partial front view showing a switching operation relationship of a culm transfer position of the culm transfer device.

FIG. 3 is a schematic side sectional view of a threshing device showing an arrangement relationship of a culm transport device.

FIG. 4 is a schematic plan view of a threshing device showing an arrangement relationship of a culm transport device.

FIG. 5 is a schematic rear view showing a driving relationship from the handling cylinder shaft to the culm conveying device.

FIG. 6 is a plan view showing the structure of a tube receiving portion that supports a vertical cylinder for discharging grain in a grain tank.

FIG. 7 is a perspective view showing the overall configuration of the combine.

[Explanation of symbols]

 1. Threshing device 2. Excreta treatment device 3. Excretion conveying device 4. Excretion chain 5. Chain frame 6. Rotation support shaft 7. Feed chain 8. Switching holding unit 9. Switching lever 9a. Tip surface 10. Handling cylinder A. Transfer position B. Non-transport position

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Tomita 1-Eight Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Inside

Claims (1)

[Claims] 1. A culm transport device 3 for taking over a threshed culm discharged from a threshing device 1 and conveying it to a rear culm processing device 2 at a rear side of a chain frame 5 around which a culm chain 4 is wound. In the agricultural work vehicle which can be switched between the transport position A and the non-transport position B depending on the presence / absence of the culm conveyance by the vertical movement of the front part side as the rotation support shaft 6, the culm of the culm conveyance device 3 is Provided near the starting end to be taken over and near the feed chain 7 is a switching holding portion 8 for switching and holding the culm conveyance, and a switching lever 9 for switching the switching holding portion 8 is attached to the handle cylinder 10. A threshing and culling device characterized by being arranged in a direction orthogonal to the direction and having a tip end surface 9a facing the feed chain 7 side.